Hugo nominated in 1962, originally published in Analog Science Fact-Science Fiction as "Sense of Obligation."

Brion has just won the Twenties, a global competition to test achievements in 20 categories of human activities - but before he can enjoy his victory he's forced to leave his homeworld to help salvage Dis, the most hellish planet in the galaxy.

72 HOURS IN HELL! Dis was a harsh, inhospitable, dangerous place and the Magter made it worse. They might have been human once - but they were something else now. The Magter had only one desire - to kill everything, themselves, their planet, the universe if they could. Brion Brandd was sent in at the eleventh hour. His mission was to save Dis, but it looked as though he was going to preside over its annihilation.